<!DOCTYPE html>
<meta charset="utf-8">
<title>Cross-realm XPath evaluator</title>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<body>
<script>
  function toArray(result) {
  var a = [];
  while (true) {
    var node = result.iterateNext();
    if (node === null) break;
    a.push(node);
  }
  return a;
}

var html_ns = "http://www.w3.org/1999/xhtml";
var xml_doc = document.implementation.createDocument(html_ns, "html");
var html_doc = document.implementation.createHTMLDocument();

promise_test(async (t) => {
  const iframe = document.createElement("iframe");
  iframe.src = "/common/dummy.xml";
  document.body.appendChild(iframe);
  await new Promise(resolve => {
    iframe.addEventListener("load", resolve, {once: true});
  });
  t.add_cleanup(() => iframe.remove());
  const iframe_expression = iframe.contentDocument.createExpression("//html");
  assert_array_equals(toArray(iframe_expression.evaluate(xml_doc)), []);
}, "expression from realm with XML associated document, context node in XML document, no namespace resolver");

promise_test(async (t) => {
  const iframe = document.createElement("iframe");
  iframe.src = "/common/dummy.xml";
  document.body.appendChild(iframe);
  await new Promise(resolve => {
    iframe.addEventListener("load", resolve, {once: true});
  });
  t.add_cleanup(() => iframe.remove());
  const iframe_expression = iframe.contentDocument.createExpression("//html");
  assert_array_equals(toArray(iframe_expression.evaluate(html_doc)), [html_doc.documentElement]);
}, "expression from realm with XML associated document, context node in HTML document, no namespace resolver");

promise_test(async (t) => {
  const iframe = document.createElement("iframe");
  iframe.src = "/common/blank.html";
  document.body.appendChild(iframe);
  await new Promise(resolve => {
    iframe.addEventListener("load", resolve, {once: true});
  });
  t.add_cleanup(() => iframe.remove());
  const iframe_expression = iframe.contentDocument.createExpression("//html");
  assert_array_equals(toArray(iframe_expression.evaluate(xml_doc)), []);
}, "expression from realm with HTML associated document, context node in XML document, no namespace resolver");

promise_test(async (t) => {
  const iframe = document.createElement("iframe");
  iframe.src = "/common/blank.html";
  document.body.appendChild(iframe);
  await new Promise(resolve => {
    iframe.addEventListener("load", resolve, {once: true});
  });
  t.add_cleanup(() => iframe.remove());
  const iframe_expression = iframe.contentDocument.createExpression("//html");
  assert_array_equals(toArray(iframe_expression.evaluate(html_doc)), [html_doc.documentElement]);
}, "expression from realm with HTML associated document, context node in HTML document, no namespace resolver");
</script>
